Winding machine



M. B. GROUT WINDING MACHINE July 3, 1928.

July 3, 1928. 1,675,650

v M. E. GROUT n WINDING MACHINE Filed April 26, 1926 6 Sheets-Sheet 2July 3, 1928.

M. B. GROUT wINDING MACHINE Filed April 26. 1926 6 Sheets-Sheet 5 grngy.

July 3, 192s. 1,675,650

M. B. GROUT wINDING MACHINE Filed April 26, 1926 6 sheets-Sheet 4 727mHEYEEFUUZ,

July 3, 1928.

M. B. GROUT WINDING MACHINE 6 Sheets-Sheet 6 Filed April 26, 1926 |.l IlQ t 1 .ern Il Patented July 3, 1928.

UNITED STATES PATENT oFFICE.

MARTIN B. GROUT, OF CHICAGO, ILLINOIS, ASSTGNOB T KELLOGG SWITCHBOABDAND SUPPLY COMPANY, OF CHICAGO, ILLINOISQA CORPORATION OI ILLINOIS.

WINDING MACHINE.

Application led April 26, .1826. Serial'No. 104,606.

My invention relates in `general to Winding machines which are used forWinding a material such as a strand of Wire upon a suitable core, andhas to do more particuy larly with that class of winding machines whichare used for Winding a strand of ivire upon a ribbon or `fiat core toform a resistance unit such as is used in connection with a rheostat forcontrolling the filament voltage of an audion tube.

An object of my invention is to provide a machine of the above type withwhich the work can be done in a rapid, eiiicient `and economical manner.

of a machine which will automatically Wind a coil of Wire upon a coreand stop at a prenumber of convolutions of Wire have been placed uponthe core.

Resistance units such as are used in connection with rheostats forcontrolling the filament voltage of an audion tube in a broadcastreceiving set are usually Wound on a strip of Hat ribbon insulation andcomprise a predetermined number of convolutions of Wire for a givenresistance and a featin'e of my invention is the provision of arotatable spindle shaft which sup ort-s a the feeding bracket to bemoved longitudi`` nally to move a feeding bar rotatably supported by thefeeding bracket through the rotating chuck in the spindle shaft to bringabout the movement of the core upon which the wire is wound at apredetermined rate.

Another feature of my invention is the provision of a novel suitableclutch mechafor moving a loose pulley into engagement A feature of myinvention is the provision chuck and which is rotatable therewith for fnism which is controlled by a starting lever with a constantl rotatinclutch disk so that moti-on may e transmitted to the spindle shaft tooperate the Winding machine.

Another feature of my invention is the a provision of control meansgoverned by the ceding bracket for releasin the loose pulley from theclutch disk t e instant that the cam has made one complete revolution tost op the yrotation of the spindle shaft.

`Still another feat-ure of my invention is V.the provision of meanscontrolled by the feeding bracket for freeing the cam from the camfollower after the cam has made one complete revolution to permit thefeeding bracket to restore to its starting `position and permit the camfollower secured `thereto to again en ge the cam. determined point whena predetermined y The above name features as well as others notspecifically pointed out will be more fully hereinafter described in theensuing specification, and for a more complete understanding of myinvention reference may `be had to the accompanying drawings `in whichlike reference characters in the several views denote like parts, and inwhich Fig. 1 is a front elevatlon of the Winding machine of myinvention.`

Fig. 2 is a plan view of Fig. 1.

Fig. 3 is a left end viewof Fig. 1.

Fig. 4 is a right end view of Fig. 1.

Fig. 5 is a vertical sectional View through a housing which contains thedriving mechanism and the cam carrying drum to illustrate in det-aill a`portion of the operating mechanism of the Winding machine.

Fig. 6 is a sectional view along the line Fig. 7 is a sectional viewalong the line 7--7 of Fig. 2.

Fig. 8 is an enlarged fragmentary sectional view along the line 8-8 ofFig. 2 illustrating the chuck for receiving `the core `upon which thewire iswound, and

3 secured to a bracket 4 supported on the plate 2 by posts 4 rotatablysupports a pulley 5 which is connected to a suitable motor (not shown)by means of a suitable belt 6. Suitable clutch mechanism C comprising adisk clutch 7 integrally formed with the pulley 5 is associated wlth apulley 8 rotatably supported on the shaft 3 and through the medium ofsuitable mechanism associated with the starting lever L, the pulley 8 iscaused to move into engagement with the clutch disk 7 to cause rotationof the pulley 8. A suitable housinor H secured to the mounting plate 2,enclbses suitable gearing mechanism and through theV medium of a pulleyl() secured to a spindle shaft 11 rotatably supported in housing H andconnected to the pulley 8 by means of the belt 12 ro- `tary motion istransmitted to the spindle shaft 11, and through the medium of thistrain of gearing G motion is transmitted to a drum D.` The drum D isloosely and rotatably supported on Va shaft 45 which is supportedinsuitable bearings 13 and 14 secured to the plate 2 and is providedwith a cam or screw lead 15. A feeder bracket T slidably supported onrods 16 and 17 supports a cam follower 18 which is held in engagementwith the face of the cam 15 on the drum, and as the drum D is rotatedthrough the agency of the gear train G the feeder bracket T is movedtoward the right with reference to Fig. 1 for purposes as will be morefully described in the ensuing description. v

The housing H which encloses the train of gearing G and the spindleshaft 11 which is rotatably supported thereby is rectangular in shapeand is provided with a cover 19 secured to the open side of the housingH to permit access to the interior and the mechanism contained therein.The ends 20 Vand 21 of the housing H are provided with counterboresthrough which the spindle shaft 11 extends, and ball bearings 22 and 23are provided which rest in the counterbores in the ends 2() and 21 ofthe housing H, and rotatably support the spindle shaft 11. Therespective ends 24 and 25 of the spindle shaft 11 are threaded and areadapted to receive caps 26 and 27 which have threaded engagement withthe threaded ends 24 and 25 of the shaft 11 and prevent longitudinalmovement of the same when su ported by its bearings 22 and 23. The shaft11 is provided with a central bore 28 which receives a split chuck 29for purposes as will presently be described. The spindle shaft 11 isalso provided With a pulley 10 which is connected by means of the belt12 to the pulley 8 on theshaft 3 as before described and through theagency of this belt 12 motion is transmitted to the spindle shaft 11.

The spindle shaft 11 has a Worm portion 30 out thereon intermediate ofits ends and meshes with a worm gear 31 secured on a transverse shaft 32rotatably supported in suitable bearings in the wall of the housing Hand the removable cover 19. The transverse shaft 32 also supports a gear33 which is secured thereto in any suitable manner and this gear 33meshes with a gear 34 adjustably supported by an arm secured to a stud36 fastened to the housing H. The arm 35 is provided with a split endV37 and the body portionrof the arm 35 is provided with a slot 38 whichreceives a suitable stud 39 for supporting the gear 34.

A gear 40 secured to a transverse shaft 41 rotatably supported inbearings in the wall of the housing H and the removable cover 19cooperates with the gear wheel 34 sup-V sition in the slot 38 of the arm35. The arm 35 may also be turned about its supporting stud 36, tofacilitate the adjustment of the gear 34 with relation to the gears 33and 4() and when this arm 35 is properly positioned a screw 42 passingthrough a suitable orifice in one of the split portions has screwthreaded engagement with a tapped orifice in the other end to clamp thearm 35 on the supporting stud 36.

The transverse shaft 41 upon which the gear 40 is secured extendsthrough the wall of the housing H and its protruding end has secured toit a bevel gear 43. Then the pulley 10 on the spindle shaft 11 isrotated through the agency of the belt 12 the spindle Ashaft 11 is alsorotated. The worm 30 on the shaft 11 being in mesh with the Worm gear 31on the transverse shaft 32 causes the same to rotate and the gear 33secured there to transmits motion to the transverse shaft H41 throughthe agency of the gear 34 on the arm 35 and the gear 40 on thetransverse shaft 41.

The shaft 45 which is rotatably supported in bearings 13 and 14 securedto the plate shaft 45. 'I lhe drum D on the shaft 45 comprises a pair ofend plates 47 and 48 anda cylindrical member 49 secured to the endVplates 47 and 48 and as a whole is loosely P -2 has secured to its oneend a bevel gear 46 `which meshes with the bevel gear 43 on thetransverse shaft 41 to transmit motion to the ably secured'to the shaft45by means of the screw 52 cooperates with a lug 53 secured to theinnerface of the'drum D. A helical spring 54 is supported on the shaft45 between the arm 51 secured on the shaft45 and the end plate 48 of thedrum D and has its one end 55 secured to the arm 51 and its other end 56secured to the end plate 48 of the drum D. The drum'D being looselysupported on the shaft 45 the spring 54 as just described maintains thelug 53 secured to the inner' face of the drum D in engagement with thearm 51 secured to the shaft 45 so that as the shaft 45 rotates in thedirection of the arrouT indicated thereon `motion is transmitted to thedrum D. j

The feeder bracket T is slidably supported on the pair of guide rods 16`and 17 which are supported at their respective ends by a bracket 60 andthe housing H. The cam follower 18 is secured to the feeder bracket T,and a coil springl 61 on a rod 62 also supported by the bracket 60 andhousing H, rests between a depending portion 63 of the feeder bracket Tand the housing H and maintains the feeder bracket T and cam follower 18secured thereto in engagement with the face 64 of the cam 15 on thecircumferential face 65 of the drum D.

The spindleM shaft 11 as before described is rotatably supported inbearings in the` respective ends 2O and 21 of the housing and isprovided with a longitudinal bore 28 which receives the Vchuck 29. The jchuck comprises a pair of semicircular members 7 0 and 71; the planefaces 72 and 73 of which are each provided with shallow grooves74 and 75and slots 76 and 77 at right anglesI to the shallow grooves 74 and 75.When the plane faces 72 and 7 8of the members 70 and 71 are placed inmatched relation to form the cylindrical chuck 29 the respective grooves74 and 75 and the slots 76 and 77'in the respective members 7 0 and 71,form slots 78 and 79 which intersect eachv other at right angles to forman X or cross-shaped orifice which extends through 'the chuck 29. Oneend of `each of the members 70 and 71 is provided with enlarged portions80 to ferm a collar which rests in a counterbore in the end 25 of thespindle shaft 11 and a pin or key 81 keys the chuck 29 tothe spindleshaft 11 so that it rotates with the` shaft 11.

Returningnow to the feeder bracketl T, it .is provided with an upwardlyextended in tegrally formed member 82 `provided with a cylindricalportion 88 Whose anis .is in alignment with the axis of the Windingspindle 11. This cylindrical portion. '88 is provided with an orifice 84of a size to` receive ball bearing 85 which is locked in position bymeans of a 'threaded collar 85 which has threaded engagement with athreaded portion of the orifice 84. An X or crossshaped feeding member86 is rotatably sup- `the lever L rests.

ported in the bearing 85 and is provided with means for adjusting thesame longitudinally by means of a thumbnut 87 Whichfhas threadedengagement with the protruding end 86 of the member 86 and a thumb nut88 is provided which has threaded engagement with the threaded portion862 of the member 86 to lock the same in its` adjusted position. Thebody of the member 86 is X or crossshaped and is adapted to lit in theslots 78 and 79 of the chuck 29 secured in the bore 28 of the spindleshaft 11 and it is readily apparent that as thefeeder bracket T is movedto the right with reference to 1 through the agency of the rot-atingdrum D which is provided with the cam l5 that the feeding member 86 isalso moved to the right through the rotating chuck 29 in the spindleshaft l1 and also rotates with the chuck 29 due to its bearing supportin the feeder bracket T.

Having described the operating mechanism of my invention, I will nowdescribe the apparatus which controls the starting and stopping of themachine. A startinglever L is Apivotally secured to the bottomiface ofthe plate 2 at the point `280 and is held in its normal position asindicated in Fig. 2 by means of' a suitable spring 281 Whose respectiveends are secured to the lever L and suitable fastening means on theplate 2. A transverse bar 282 is provided and is slidably supported inslots 284 in a pair of lugs 288 depending from the bot-tom face of theplate 2p The bar 282 is maintained in the slots 284 in the lugs 288 bymeans of retaining Vplates 285 secured to the lugs 283 and this bar 282is provided with a slot 286 in which j Asuitable bracket 287 secured tothe face of the plate 2 is provided with an orifice 288 which receives arack member 289 provided with teeth 90. A member 91 pivotally secured tothe bracket 287 in a slot 92 in the bracket 287 is provided with anarcuate portion provided' `with teeth 98 which mesh with the teeth 90 onthe rack member. The member 91 is ilgirovided with an integrally formeddepi-inding portion 94 which is adapted to beengaged by the end 95 ofthe transverse slidingl bar 282 when the lever L is lnovcd to the rightwith reference to Fig. 7 to cause its end `95 to engage the dependingportion 94 of the pivoted member 91. `Continued movement of the bar 282causes the member 91 to rotate about its pivot 96 and as the teeth 98 ofthe member 91 are in mesh With the teeth 90 on the rack 89, the rack 289is of course moved up for purposes as will presently be described.

A pair of brackets 97 and 98 are secured to the plate 2 and support ashaft 99 which in turn supports a brake arm member 100. The brake armmember 10() is provided with an integrally formed forwardly extendingportion 101 provided with a channel which las 4 is adapted to receive anarm 102 which is secured thereto by means of screws 103. This arm 102extends forward with reference to Fig. 4 and has secured to its free end104 a spring 105, the other end of the same being secured to suitablemeans on the plate 2. The armV 102 is in alignment with the rack 289 andas the same is moved up as before described, the protruding end 106 ofrack 289 engages the arm 102 and moves it up against the normal tensionof the spring 105.

A bracket 107 is pivotally supported on the brake arm member 100 bymeans of the pivot pins 108 and is provided with an integrally formedforwardly extending portion 109 provided with a channel which is adaptedto receive an arm 110, which is secured to the bracket 107 by screws111.

A member 112 provided with a cam face 113 is secured to the arm 110 andcooperates with a plunger 114 which is slidably supported in the ends 47and 48 of the drum D. A spring 115 which rests between the end 47 of thedrum D and acollar 116 on the plunger 114 normally holds, the plunger inthe position illustrated in Fig. 5 with relation to the member 112provided with the cam face 113.

Attached to the housing is a stud 200 which supports a collar 201, towhich is attached an arm 202. The arm 202, has secured to it a piece offibre 203. The said arm 202 is rotatably secured on the stud 200 andheld in posit-ion by means of a coiled spring 204. The spring is held onthe stud 200 by means of a nut 205. The arm 202 is provided with a rib206 which cooperates with a cam 207 which cam is adjustably secured tothe housing to limit the extent of movement of the arm 202. This arm 202is rotatably secured to the housing so that it may be moved back out ofthe way when a strip of fibre is inserted into or taken out of the chuckwhich receives the same.

The resistance wire that is wound upon the elongated strip of fibre isfed between the face of the strip of fibre 203, attached to the arm 202,and the face of the member 27. thus the wire is held in position whenbeing wound upon the strip of fibre.

Having described the apparatus of the winding machine in detail I willnow describe in detail its operation. The drawings show the mechanism inposition ready to start winding. To start the machine in operationctheoperator grasps the lever L and moves the same to the right withreference to Fig. 2, causing the transverse bar 282 to move to the rightbringing the end 95 of the bar 282 in engagement with the dependingmember 94 ofthe pivoted member 91 and causes it to rotate about itspivot 96. This movement of the member 91 causes the rack 289 to move updue to the teeth 93 of the member 91 meshing with the teeth 90 of therack 289. As the rack moves up its protruding end 106 of the rackengages the arm 102 and raises it against the tension of the spring 105secured to its free end 104. The arm 102 being secured to the brake armbracket 100 causes the same to turn about the shaft 99 upon which it isloosely supported, and as the arm 110 is also secured to the bracket 107which is in turn pivotally secured to the bracket 100 it is also raisedup with reference to Fig. 3. A rod 120 is provided which is secured tothe extended port-ion 101 of the member 100 and supports a coil spring121 which bears against the arm 110 which is pivoted to the member 101.Now as the arm 110 is raised it is also moved to the left` withreference to Fig. 1 under the influence of the spring 121 to cause itsfree end to engage the notch 122 and a plate member 123 secured to themounting plate 2. The spring 121 maintains the arm 110 in engagementwith the notch 122 in the member 123 to hold it in its raised positionand as the arm 102 is also linked to the member 100 by the integrallyformed member 101 it is also held in its raised position against thetension of the spring 105 secured to its free end 104.

A transverse bar 125 is slidably supported in lugs 126 on the bottomface of the plate 2 lby retaining plates 127 secured to the lugs 126 byscrews 128. `The end of the bar 125 is engaged bythe lever L and as thebar 125 is associated with lever L near its pivotal point 280 the bar125 only travels a short distance to the right. The bracket 4 whichsupports the pulleys 5 and 8 is provided with an integrally formedslotted portion 130 which pivotally supports a trigger arm 131. The end132 of the arm 131 is adapted to be engaged by the` bar 125 as itismoved to the right causing the arm to move about its pivot 133 to forcethe upper end 134 of the arm 131 which has secured to it a hardened wearpiece 135 to the left with reference to Fig. 6 causing the pulley 8which is loose on the sha-ft 3 to be forced into engagement with thedisk clutch 7. Y

A catch lever 136 is provided which is pivotally secured to a bracket137 secured to the mounting plate 2. The forward end of the lever 136normally rests below the shoulder 138 formed by the reduced portion ofthe lever 131 but as the end 132 of the lever 131 moves to the right theinstant that the shoulder 138 clears the nose 139 of the lever 136 it ismoved up under the influence of a spring 140 which rests between thebottom face of the lever 136 and the face of the plate 2 to hold the arm131 in its position illustrated in Fig. 6. The movement of the lever 136at this time is permitted by the arm 102 which is now held in its raisedposition as previously described. The pulley 6 and its integrally formeddisk-clutch 7 are constantly rotat-ing as previously described and asthe pulley 8 is forced into engagement with the rotating clutch 7 by arm131, rotation is now transmitted to the pulley Sand thisrotation istransmitted to the pulley 10 on the spindle shaft 11 by means of thebelt 12.

I provide a brake 140 for the pulley 10"on the spindle shaft 11 whichcomprises an arcuate shaped portion 141 pivotally secured to lugs 142integrally formed with the housing H.

The arcuate shaped portion 141 is pro-i vided with an integrally formed`arm 143 which is connected to a link 144 secured to the arm 102. a bifureated end 145 which straddles the arm 102 and -is pivoted thereto bya pivot pin 146. The other end of the link 144 is pro vided with a pair`of integrally formed lugs 147 between Which the arm 143 of the brake 140rests and is held against displacement by means of a. threaded inembeil148 secured to the upper lug of the link 144. As the arm 102 is raisedas previously described the link 144 which is connected to the armV 102With Vthe arm extension 143 of the brake 140is also raised causing thearcuate face 141 of the brake 140 which is suitably lined With `a brakelining to disengage the `face ofthe pulley 10 and as.` motion is nowtransmitted to the pulley 10 on the spindle shaft 11 the same may nowrotate freely. The spindle shaft 11 also rotates and through the agencyof the Worm 30 on the shaft 11 and the worm gear 31 and gears 33, 34 and40 motion is transmitted to the transverse shaft 41. The transverseshaft 41 throughtlie agency of its bevel gear 43 and bevel gear 46 now.transmits motion to the shaft 45 loosely supporting the drum D. The arm51 Which is secured to the shaft 45 rotates With the same and being inengagement Withthe lug 53 secured to the inner circumferential face ofdrumD motion is transmitted to the drum D. The drum D starts to rotateand as the cam follower 18 on the feeder' bracket T is in engagementwith the face 64 of the cam 15 on the drum D the feeder bracket 'F isforced to the right with reference to Fig. 2 against the tension of theAspring 61 on the rod 62.

The resistance units of rheostats in general use comprise a nari-ou7strip of insula tion material upon. Which the resistance Wirey is wound.The strip of insulation material is of a predetermined Width, length andthickness around which the resistance Wire is Wound to forma unit ofapredetermined resistance and I have therefore designed` the Windingmachine of my invention to Wind re sistance units of this type.

The cap 27 seouredto the threaded portioni 25 of the spindle shaft 11 isprovided Withl a cross shaped opening which registers with the slots 78and` 79 in theV chuck- 29 in the spindle shaft 11. These slots 7 8 and79 are of a size toreceive a stripofthis insulat- The link A144 isprovided with ing` material and it is inserted until its one end abutsagainst the end ofthe crossfshaped feeding member86 rotatably secured tothe feeder bracket T and which enters the chuck` 29 as previouslydescribed. The other end ofthe insulating strip 150as shown in dottedlines in Fig. 9 extends slightly ybeyond the` ,cap 27 to permit theresistance Wire to be secured thereto. y r

In Fig.' 9 I show the mechanismthat is adapted to receive the strip of`fibre with the resistance unit wound" thereon as it is forced out oftheslots 78C`or 79 of the winding spindle. The rod12`1`0V `which isattached to the housing. has attached thereto a bracket 211. The bracket`211 is provided with an orifice in which is a rod 212.` The rod 212 hasan orifice therethrough somewhat larger than the diameter of the fibrestrip that receives the resistance Winding. In this orifice is a plunger214 which has attached thereto a rotatable cup shaped member 215i Backof the plunger 214 Vis a compression spring 216. The rod 212 has a slot217 therein which `cooperates with a pin 218 in" the bracket 211.

To insert a strip of` fibre in my' device the rod 212 isrotatedslightlyand moved to the right in Fig. 91 The strip 150 is then inserted in Aoneofthe cross slots in the rotating spindle, the arm 202being out of itsnormal position.l The yvire is then connected to the protruding end ofthe fibre strip andthe arm 202 moved back into position 4'With the" Wireheld taut between the libre face 203 of aim202 and the face of member27. The

rod21`2 is then movedback into' position with the protruding end ofstripl() resting in the cup sha )ed member 215. As the strip 150 is graually fed out of the rotating spindle it presses against cup 215movingthe p linger 2l'4'to the right against the tension' bracket Ty isinengagement with the cam face 64 of the cam 15 on the drum D', thisrotation ofthe drum Dr causes the feeder bracket'T to be moved to theright with reference to Fig.r 2. The spindle shaft 11 and the chuck29keyed-thereto and the feeding `member 86 rotate `as a Whole .and themovement of the feeder bracket `T to the' right causes the feedingmember 86 to be moved` to the right in addition to its rotary motion.`This movement to the right of the feeding member 86 forces theinsulation-l strip 150.t0 the right at a predetermined vrateto place therequired number of turns ofresistance wire on the insulating strip 150for a predetermined ohmic resistance.

As the drum D continues its rotation the plunger 114 slidably supportedin the ends 47 and 48 of the drum D engages the cam face 113 on themember 112 secured to the arm 110 causin the plunger 114 to be forced tothe le with reference to Fig. 5 against the tension of the spring 115.VThe instant that the drum D has made a revolution the stop 151 on thefeeder bracket T engages the arm 110 pivotally secured to the racket andmoves the same to the right against the tension of the spring 121 untilthe edge 152 of the arm 110 disengages the notch 122 in the member 123in which it rested. The instant that the drum D has made a revolutionthe plunger 114 in the drum D has also passed below the edge 153 of thecam face 113 permitting the spring 115 to again move the plunger 114 toits normal position as illustrated in Fig. 5. The movements of theplunger 114 and the arm 110 take place simultaneously and as the arm 110has been moved to disengage the notch 122 in the member 123 the arms 110and 102 are free tol be restored to normal through the agency of thespring secured to the free end 104 ofthe arm 102. The arm 102 is moveddown under the influence of the spring 105 and as the arm 110 ispivotally secured to the bracket 100 this arm is also moved down underthe inluence of the spring 105. As the arm 110 moves down under theinfluence of the spring 105 the member 112 secured to the arm 110strikes'the end of the plunger 114 which is now beneath this member 112a sharp blow causing the drum to rotate a slight degree and independentof the shaft 45 upon which it is loosely supported. This additionalmovement of the drum D caused by the arm 110 striking the plunger V114causes the cam face 64 of the cam 15 on the drum D to be moved beyondthe cam follower 18 and with the cam follower 18 on theV feeder bracketT free of the cam face 64, the feeder bracket T is in a position toagain move to the left under the influence of the spring 61, on the rod62 which spring 61 was laced under tension when theV feeder racket Tmoved to the right.

The return movement of the feeder bracket T is controlled by a suitablecheck which comprises piston 161 secured to one end of a I'od 162, whichfits in a suitable cylinder 163 secured to the bracket 60. The other endof the rod 162 is secured to the feeder bracket T and as the samereturns to its starting position under the influence of `the spring 61the piston 161 in the cylinder 163 permits the feeder bracket T torestore to normal gradually, the s eed of return being governed by thesize o the the opening 165 in the end of the cylinder '163 for theescape of air as it is compressed i upon which the drum D is looselysupported. y

This movement of the drum D places the spring 54 under additionaltension and immediately returns the drum D to normal Vposition with thelug 53 again engaging the arm 51 on the shaft 45. The feeder bracket Thaving restored to its normal position per mits the cam follower 18 onthe feeder bracket T to again engage the face 64 of the cam 15 and thefeeder bracket T and drum D are now in position to complete anothercycle of operation.

The arm 102 in its downward movement causes the adjustable stop on thebottom of the arm 102 to engage the lever 136 and force it down againstthe tension of the spring 140 and when the nose 139 of thc lever 136passes the shoulder 138 on the arm 131 the arm 131 is free to move aboutits pivot 133, to release the pressure that forced the pulley 8 intoengagement with the clutch disk 7. The pulley 6 and its integrallyformed clutch disk 7 continue to rotate but as the pulley 8 hasdisengaged the clutch disk 7 it discontinues its rotation.

The link 144 which connects the arm 102 with the arm 143 of the brake140 is also moved down when the arm 102 starts its downward movement,causing the upperlug 147 `of the link 144 to engage the arm 143 of thebrake 140 and move it downward. The arcuateface 141 of the brake 140 isnow moved into engagement with the face of the pulley 10 on the shaft 11and pressure is applied to the brake face by a spring 175 having one endsecured to the arm 143 of the brake 140 and its other'end secured tosuitable fastening means which checks the rotation of the spindle shaft11. The downward movement of the arm 102 also engages the rack 289 whichwas moved up when the starting lever L was actuated and restores thesame, and this movement of the rack 289 also returns the pivoted member91 which is in mesh with the rack 289.

The drum D is now restored to itsnormal position under the influence ofthe spring 54 and the feeder bracket T is also restored to its startingposition with the cam follower 18 in engagement with the face 64 of thecam 15 on the drum D. The feed member 86 has also been carried to itsstarting position by the feeder bracket T and with the other mechanismrestored as described above the machine isv ready to start another cycleof operation. The strip of insulation 150 upon which the wire has beenwound having been forced out at a predetermined Vrate lll() by the feedmember' 86 is new removed by the operator after the end vof the Wire issuitably secured to the strip 1501 and another strip 150 is `novvinserted in the slots 78 or 79 oi the chuck 29and the end of the Wiresecured to the strip and the starting lever L again moved to the rightto cause the mechanism to liunction in the same manner as justdescribed.

The source of Wire supply is suitably supported by a tension device asillustrated and described in a copending application filed February 2,1925, and bearing Serial No. 6,959. e

It is also readily apparent that resistance units of varying resistancesmay be wound by changing the gearing ratio of the` train of gearing inthe housing H thus providing a machine which is very flexible.

From the foregoing it is apparent that all that is necessary for theoperator of my machine to do is to insert the strip of material in thechuck of the machine, to fasten the wire thereto'and to pull the leverto the right to start the machine in operation. The machineautomatically stops itself after automatically placing the predeterminednumber oil turns of vvireV upon the strip.

While I have illustrated and described a preferred form of my inventionit is readily apparent that changes and modifications Will suggest`themselves to those skilled in the art and I therefore do not vvishy tobe limited to the exact structure as sho-wn but aim to cover all suchchanges and modifications as comevvithin the spirit and scope of the`appended claims. i l i What I claim as new and desire to secure byUnited States Letters Patent is:

1. A Winding machine including a rotating spindle, a coil receivingmember supported by said spindle, a strand of material adapted to beWound upon said coil receiv ing member, and automatic means including arotatable cam adapted to engage a feeding bracket associated with afeeding ba-r adapt ed to enter said spindle to vengage the said coilreceiving member for moving saidcoil receiving member relative to saidstrand of material to lspace the strand of material upon said coilreceiving member.

2. A winding machine including a: Winding spindle, a coil receivingmember sup ported by said spindle, a strand ofmaterial adapted to beWound upon said coil receiving member, automatic means including arotatable cam adapted to engage a feeding bracket associated' withl afeeding bar adapty ed to enter said spindle to engage one end of thesaid coil receiving member formoving said coil receiving member to spacethe strand of material upon said coil receiving member, and mean-s forautomatically stopping the rotation of said winding spindle when apredetermined number of turns of coil receiving member relative to saidWind-r ing spindle and said strand of material to space said strand ofmaterial upon said coil receiving member'.

4. A Winding machine including a windnig spindle adapted to `be rotated,a coil receiving member supported by said `winding spindle, a' strand ofmaterial adapted to be Wound upon said coil receiving member, meansincluding a rotatable cam adapted to engage a feeding bracket associatedwith a feeding bar adapted to enter said spindle to engage one end ofthe said coil receiving member for longitudinally advancing said coilreceiving member relative to said winding spindle and said strand ofmaterial to space said strand of material` upon said coil receivingmember, and automatic. means for stopping the rotation of said Windingspindle.

5. A Winding machine including a Winding spindle adapted to be' rotated,a coil receiving member supported by saidwinding spindle, a strand ofmaterial adapted to be Wound upon said coil receiving memben, means torlongitudinally advancing said coil receiving member relative `to saidwinding spindle and said strand of material to space sa-id strand ofmaterial upon said coil receiving member, an automatic means forstoppinc the rotation of said rotating spindle, and means including atrain of gears, an adjustable support" for one of said gears wherebydifferent sized gears maybe inserted for varying the spacing of thewindings of said strand material on the said coil re` ceiving member.

6. A winding machine including a rotating spindle, a coil receivingmember adapted to be inserted into said spindle, a strand ofk material.adapted to be Wound upon said coil receiving member, and automatic meansin'- cludinfr a rotatable cam adapted to: engage a feeding bracketassociated with a feeding bar adapted to` enter said winding spindle toengage one end ofi-said coil receiving member for feeding said coilreceiving mem-A ber out of said spindle as said strand of 'windingmaterial is placed. upon said coi-l receiving member.

7 A winding machine including ai rotat.

ing spindle, a coil receiving member adapted to be inserted intesa-idspindle,a strand of material adapted to be Wound upon said coil.

receiving member, automatic means including a rotatable shaft, a camsupported by said shaft, an arm rotatably secured to said shaft andadapted to engage means affixed to said cam whereby the said cani may berotated vto operate a feeding bar for feeding said coil receiving memberout of said spindle as said strand of Winding material is placed uponsaid coil receiving member, and means for automatically stopping therotation of said Winding spindle and the ad. vancement of said meanswhich advances the coil receiving member.

8. A Winding machine including a rotating spindle, a coil receivingmember adapted to be inserted into said spindle, a strand of materialadapted to be Wound upon said coil receiving member, automatic means forfeeding said coil receiving member out of said spindle as said strand ofWinding ma- V terial is placed upon said coil receiving member, andmeans including a chuck for receiving the protruding end of said coilreceiving member and a slidable support for said chuck for confining therotation of the protruding end of said coil receiving inember to asingle horizontal plane.

9. A winding machine including a. rotating spindle, a coil receivingmember adapted to be inserted into said spindle, a strand of materialadapted to be Wound upon said coil receiving member, automatic means forfeeding said coil receiving member out of said spindle as said 'strandof Winding ma terial is placed upon said coil receiving member, a chuckfor receiving the protruding end of said coil receiving member, aslidable support for said chuck, said chuck and support adapted toconfine the rotation of the protrudingr end of said coil receivingmeinber to a single horizontal plane and means for resetting the machineready for reopcr ation by a single movement.

10. A machine of the character described including a spindle shaft andpower means for driving the same, a cam shaft supporting a cam, gearingmechanism associated with said spindle shaft for rotating said canishaft, a chuck in said spindle shaft, and afeeding bracket rotatablysupporting a feeding bar extending into said chuck, saidcain acting uponsaid feeding bracket to longitudinally move said feeding bar apredetermined distance through said chuck.

11. A machine of the character described including a spindle shaft andpoiver inean-s for driving the same, a cam shaft loosely supporting acam, gearing mechanism associated With said spindle shaft for rotatingsaid cam shaft, means a-ssociated with said cam and said shaft forrotating said cam, a chuck secured in said spindle shaft, and a feedingbracket rotatably supporting a feeding bar extending into said chuck,said cam acting upon said feeding bracket to longitudinally moveV saidfeeding bar a predetermined distance through said chuck.

l2. A machine of the character described including a spindle shaft andpower means for driving the same, a chuck secured in said spindle shaft,a cam shaft and a cam loosely supported thereon, a train of gearingassociated with said spindle shaft for rotating said cam shaft, meansassociated with said cam and said shaft for rotating said cam, a feedingbracket rotat-4 ably supporting a feeding bar extending into said chuck,said cam acting upon said feeding bracket to move said feeding barlongitudinally through said chuck, and means on said feeding bracket tocontrol the amount of longitudinal movement of said feeding member insaid chuck.

13. A machine of the character described including a spindle shaft andpower means for driving the same, a chuck secured in said spindle shaft,a cam shaft and a cam loosely supported on said cam shaft, a train ofgearing associated with said spindle shaft for rotating said cam shaft,means on` said cam shaft for rotating said cam, a feeding bracket and afeeding bar rotatably supported thereon and extending in said chuck,said cam acting upon said feeding bracket to move the samelongitudinally to move the feeding bar through said chuck at apredetermined rate, and tripping means actuated by said feeding bracketto arrest the rotation of said spindle shaft and lsaid cam after saidbar has ineved into said chuck a prede terinined distance.

lli. A machine of the class described including `a spindle shaft and achuck secured in` said spindle shaft, power means for driving saidspindie shaft, a cam shaft and a cani supported thereon, a vtrain ofgearing associated with said spindle shaft for rotating said cani shaft,a feed bracket and a feed bar rotatably supported thereon and extendinginto said chuck, a strand of Wire and a core in said chuck adapted toreceive said Wire, said cam acting upon said feed bracket to move thesaine longitudinally to move said feed bar through said chuck at apredetermined rate to force said core from said chuck to receive apredetermined number of convolutions of said strand of Wire.

15. A machine of the class described including a spindle shai'tand achuck secured in said spindle shaft, power means for driving saidspindle shaft, a cam shaft and a cam supported thereon, a train ofgearing associated with said snindleshaft for rotating said cam shaft, afeed bracket, a feed bar rotatably supported b f said feed bracketextending into saidchuc r, said cam acting upon said feed bracket tomove the same longitudinally to move said feed bar through said chuck,and trip means controlled by said feed bracket actuated upon thecompletion of a revolution of said cam to arrest the rotation of saidspindle shaft and said cam.

16. A machine of the class described including a spindle shaft and achuck secured in said spindle shaft, power means for. driving saidspindle shaft, a cam shaft and a cam loosely supported thereon, a trainof gearing associated With said spindle shaft for rotating said camshaft, means on said cam shaft for rotating said cam, a feed bracket,and a feed bar rotatably su ported by said feed bracket extending in saichuck, said cam acting upon said feed bracket to move the samelongitudinally to move said feed bar through said chuck, trip meanscontrolled by said feed bracket actuated upon the completion of arevolution of said cam to arrest rotation of said spindle shaft and saidcam, said trip `means releasing said feed bracket from said cam topermit the same to restore and again engage said cam.

17. A machine of the class described including a spindle shaft and achuck secured in said spindle shaft, power means for driving saidspindle shaft, a cam shaft and a cam loosely supported thereon, a trainof gearing associated With said spindle shaft for rotating said camshaft, means on said cam shaft for rotating said cam, a Vsource ofsupply material and a core adapted to be received in said chuck uponwhich said material is Wound, a feed bracket, a feed bar rotatablysupported by said freed bracket Y extending into said chuck, said camacting upon said feed bracket to `move the same longitudinally to causesaid feed bar to engage said `core and force the same out of upon saidcoil receiving member, automatic means for feeding said coil receivingmember out of said spindle as said strand of Winding material is tightlyplaced upon said coil receiving member, means for confining the rotationof the free end of said coil receivingrmember, means for automaticallystopping the rotation of said Winding spindle, and automatic means forpreparing the machine for subsequent operation.

19. A winding machine of the character described including a rotatingspindle, a coil receiving member carried by said spindle, a spool ofwinding material, means for rotating and longitudinally moving said coilreceiving member to receive a coil of Winding material from said spool,automatic means for stopping rotation of said spindle, and means for'preparing said machine for a subsequent operation.

In testimony whereof I have signed this specication.

MARTIN B. GROUT.

